iPhone not blocking calls/emails/voicemails after iOS 26.4

iOS 26.4 is now preventing iPhone from Blocking unwanted phone numbers, email address and voicemails.

Ever since installing iOS 26.4 on my iphone 17 pro max on March 25, 2026, iPhone will no longer block sender of calls, voicemails or emails...

Before the recent iOS update, one could swipe left on the respective phone number and select either "Block" or "Block and Report Spam" - to be clear, these steps and options are still appearing on my iPhone. However, before the update, if you selected one of the aforementioned block options, then the respective phone number, voicemail or email would then display "O-slash" symbol to indicate that the respective phone number, etc. had been successfully blocked. One could also swipe left again on the phone number/voicemail/email and then also confirm that the phone number, etc. had been successfully been blocked by seeing the option to "Unblock" the respective phone number, etc.

Now, after the iOS 26.4 update, the O-slash symbol does not appear and the option to Unblock does not appear either - the "Block" option continues to appear indicating that the respective phone number, email address or voicemail is still not blocked.

As I stated above I'm using an iPhone 17 pro max with iOS 26.4; all apps are current. Ive restarted my device several times and made no changes to any of my settings before or after the iOS update.